author
Known for careful studies of mammals in the American West, this writer explored wood rats, piñon mice, raccoons, and other species with the close attention of a field naturalist. His surviving books and papers read like snapshots of mid-20th-century zoological research.

by Robert B. Finley
Robert B. Finley, often credited as Robert B. Finley, Jr., was a zoological writer and researcher whose published work focused on mammals of Colorado and the surrounding region. Records in library catalogs and Project Gutenberg list works including The Wood Rats of Colorado: Distribution and Ecology, A New Subspecies of Wood Rat (Neotoma mexicana) from Colorado, A New Piñon Mouse (Peromyscus truei) from Durango, Mexico, and studies on raccoons and other terrestrial mammals.
His books and papers suggest a strong interest in field observation, classification, and animal distribution. Rather than writing for a general audience, he appears to have worked in the tradition of museum and academic natural history, documenting species ranges and physical differences in a clear scientific style.
Publicly available source pages confirm his publications, but they offer very little personal or biographical detail beyond his authorship and research topics. No reliable portrait image could be confirmed from the sources reviewed.